Caged Ball LM Guide

With the Caged Ball LM Guide, the use of a ball cage allows lines of evenly spaced balls to circulate. This eliminates friction between the balls, resulting in uniform alignment and motion. In addition, grease held in a space between the ball circulation path and the ball cage (grease pocket) is applied on the contact surface between each ball and the ball cage as the ball rotates, forming an oil film on the ball surface. As a result, the oil film is not easily broken.

Precautions on Use

Types

Highlight feature tags

Long-term maintenance free
High accuracy
Heavy load
Self-adjusting capability
4-way equal load

Size : 15,20,25,30,35,45,55,65

Long-term maintenance free
High accuracy
Self-adjusting capability
Radial

Size : 15,20,25,30,35

Size : 25,30,35,45,55,65

Long-term maintenance free
High accuracy
Self-adjusting capability
Low-profile LM Guide
4-way equal load
Wide
Suited for single rail

Size : 12,14,17,21,27,35,50

Long-term maintenance free
High accuracy
4-way equal load
Miniature

Size : 5,7,9,12,15,20,25

Long-term maintenance free
High accuracy
4-way equal load
Cross

Size : 15,20,25,30,35,45,65

Long-term maintenance free
High accuracy
Finite stroke
Low friction
4-way equal load
Miniature

Size : 7,9,12,15

Size : 15,20,25,30,35,45

Long-term maintenance free
Lightweight
Self-adjusting capability
4-way equal load

Size : 15,20,25

Features

Structure and Features of the Caged Ball LM Guide

With the Caged Ball LM Guide, the use of a ball cage allows lines of evenly spaced balls to circulate, thus to eliminate friction between the balls. In addition, grease held in a space between the ball circulation path and the ball cage (grease pocket) is applied on the contact surface between each ball and the ball cage as the ball rotates, forming an oil film on the ball surface. As a result, an oil film is not easily broken.

Advantages of the Ball Cage Technology

The absence of friction between balls, together with increased grease retention, achieves long service life and long-term maintenance-free (lubrication-free) operation.
The absence of ball-to-ball collision achieves low noise and acceptable running sound.
The absence of friction between balls achieves low heat generation and high speed operation.
The circulation of lines of evenly spaced balls ensures smooth ball rotation.
The absence of friction between balls allows high grease retention and low dust generation.

Long Service Life and Long-term Maintenance-free Operation

● Data on Long Service Life and Long-term Maintenance-free Operation

Use of a ball cage eliminates friction between balls and increases grease retention, thus to achieve long service life and long-term maintenance-free operation.

[Condition]
Speed	:	60m/min
Stroke	:	350mm
Acceleration	:	9.8m/s²
Orientation	:	horizontal
Load	:	Caged Ball LM Guide	:	11.1kN
		Full-Ball Type	:	9.8kN

Low Noise, Acceptable Running Sound

● Noise Level Data

Since the ball circulation path inside the LM block is made of resin, metallic noise between balls and the LM block is eliminated. In addition, use of a ball cage eliminates metallic noise of ball-to-ball collision, allowing a low noise level to be maintained even at high speed.

High Speed

● High-speed Durability Test Data

Since use of a ball cage eliminates friction between balls, only a low level of heat is generated and superbly high speed is achieved.

[Condition]
Model No.	: Caged Ball LM Guide Model SHS65LVSS
Speed	: 200m/min
Stroke	: 2500mm
Lubrication	: initial lubrication only
Applied load	: 34.5kN
Acceleration	: 1.5G

Smooth Motion

● Rolling Resistance Data

Use of a ball cage allows the balls to be uniformly aligned and prevents a line of balls from meandering as they enter the LM block. This enables smooth and stable motion to be achieved, minimizes fluctuations in rolling resistance, and ensures high accuracy, in any mounting orientation.

Low dust generation

● Low Dust Generation Data

In addition to friction between balls, metallic contact has also been eliminated by using resin for the through holes. Furthermore, the Caged Ball LM Guide has a high level of grease retention and minimizes fl y loss of grease, thus to achieve superbly low dust generation.